Donnie Nietes is very open to the idea of facing countryman Jerwin Ancajas, who holds the IBF super flyweight title.

Nietes was at ringside on Saturday night, when Ancajas decisioned his ALA boxing stablemate Jonas Sultan at the Save Mart Center in Fresno, California.

"I'm willing to fight anyone. Of course we are now at the same weight, so it is inevitable that I will fight him as well," Nietes told Spin.ph.

The 36-year-old Nietes will debut at the super flyweight limit on August 18th, when he faces countryman Aston Palicte for the vacant World Boxing Organization (WBO) title at 115-pounds, at the Cebu Coliseum.

Nietes (41-1-4, 23 KOs) dropped his IBF flyweight crown to move up, and a victory in August would make him a four division world champion.

And the victory would also put Nietes in line to fight Ancajas in an all-Filipino unification.

"All of that depends on who my manager and promoter want to negotiate with. I'm just prepared," said Nietes. 

Nietes previously held world titles at minimumweight, junior flyweight, and flyweight.

Ancajas is co-promoted by Top Rank and MP Promotions, which is run by eight division world champion Manny Pacquiao.

Nietes made his HBO televised debut in February, as part of the Superfly 2 card at The Forum in Inglewood, and made a big impression by putting away Juan Carlos Reveco in the seventh round of action.

The contest was only Nietes' second bout at the weight, after capturing the vacant IBFL title with a twelve round unanimous decision in April 2017 over Komgrich Nantapech.

Ancajas (30-1-1, 20 KOs) is looking for the biggest fight possible. As part of his card last night, Kal Yafai retained his WBA super flyweight belt with a stoppage victory over David Carmona. Top Rank would like to match the two boxers in a unification at a later date.